2021 FORD TRANSIT Cooling system

Under Hood Overview - 3.5L Duratec
.......................................................................280
Under Hood Overview - 3.5L Ecoboost™ ........................................................................\
.
281
Engine Oil Dipstick - 3.5L Duratec ........
282
Engine Oil Dipstick - 3.5L Ecoboost™ ........................................................................\
282
Engine Oil Check .........................................
282
Changing the Engine Oil and Oil Filter ........................................................................\
283
Oil Change Indicator Reset .....................
284
Changing the Engine Air Filter ...............
284
Engine Cooling Fan ....................................
285
Engine Coolant Check ..............................
285
Automatic Transmission Fluid Check ........................................................................\
289
Brake Fluid Check ......................................
290
Changing the 12V Battery ........................
290
Adjusting the Headlamps ........................
293
Washer Fluid Check ...................................
294
Fuel Filter .......................................................
294
Checking the Wiper Blades ....................
294
Changing the Front Wiper Blades ........
295
Removing a Headlamp .............................
295
Changing a Bulb .........................................
296
Drive Belt Routing - Vehicles With: Dual Generators .................................................
301
Drive Belt Routing - Vehicles With: Single Generator ...................................................
301
Vehicle Care
Cleaning Products ......................................
302
Cleaning the Exterior .................................
303
Waxing ...........................................................
304
Cleaning the Engine ..................................
304
Cleaning the Windows and Wiper Blades ........................................................................\
305
Cleaning the Interior ..................................
305
Cleaning the Instrument Panel and Instrument Cluster Lens ......................
307
Repairing Minor Paint Damage .............
308Cleaning the Wheels
.................................
308
Vehicle Storage ...........................................
308
Body Styling Kits ..........................................
310
Wheels and Tires
General Information ....................................
311
Tire Sealant and Inflator Kit .....................
312
Tire Care ..........................................................
315
Using Winter Tires ......................................
332
Using Snow Chains ....................................
333
Tire Pressure Monitoring System ..........
334
Changing a Road Wheel ..........................
339
Lug Nuts .........................................................
350
Capacities and Specifications
Engine Specifications - 3.5L Duratec ........................................................................\
352
Engine Specifications - 3.5L Ecoboost™ ........................................................................\
353
Motorcraft Parts - 3.5L Duratec ............
354
Motorcraft Parts - 3.5L Ecoboost™ .....
355
Vehicle Identification Number ...............
356
Transmission Code Designation ............
357
Capacities and Specifications - 3.5L Duratec .......................................................
358
Capacities and Specifications - 3.5L Ecoboost™ ...............................................
363
Bulb Specification Chart .........................
369
Connected Vehicle
What Is a Connected Vehicle ...................
371
Connected Vehicle Requirements .........
371
Connected Vehicle Limitations ...............
371
Connecting the Vehicle to a Mobile Network .......................................................
371
Connecting the Vehicle to a Wi-Fi Network ......................................................
372
Connected Vehicle – Troubleshooting - Vehicles With: Modem ..........................
372
6
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Table of Contents

Setting the Temperature
Turn the temperature control
counterclockwise for cooler temperature
settings.
Turn the temperature control clockwise
for warmer temperature settings.
HINTS ON CONTROLLING THE
INTERIOR CLIMATE
General Hints
Do not place objects under the front seats
as this may interfere with directing air to
the rear seats.
Remove any snow, ice or leaves from the
air intake area at the base of the
windshield.
Note:
You may feel a small amount of air
from the footwell air vents regardless of the
air distribution setting.
Note: To reduce humidity build-up inside
your vehicle, do not drive with the system
switched off or with recirculated air always
switched on. Note:
To reduce fogging of the windshield
during humid weather conditions, direct air
to the windshield air vents.
Note: Prolonged use of recirculated air may
cause the windows to fog up.
Note: Use air conditioning with recirculated
air to improve cooling performance and
efficiency.
Quickly Heating the Interior
• Select the highest blower motor speed.
• Select the highest temperature.
• Direct air to the footwell air vents.
Recommended Settings for
Heating
• Select a medium blower motor speed.
• Select the required temperature.
• Direct air to the footwell and
windshield air vents.
Quickly Cooling the Interior
• Select maximum cooling.
Note: To improve the time to reach a
comfortable temperature in hot weather,
drive with the windows open until you feel
cold air through the air vents.
Recommended Settings for
Cooling
• Select a medium blower motor speed.
• Select the required temperature.
• Direct air to the instrument panel air
vents.
• Press A/C.
Defogging the Side Windows in
Cold Weather
• Select maximum defrost.
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2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Climate ControlE244106

•
The trailer brake controller is fitted with
a feature that reduces output at vehicle
speeds below 11 mph (18 km/h) so
trailer and vehicle braking is not jerky
or harsh. This feature is only available
when applying the brakes using your
vehicle's brake pedal, not the
controller.
• The controller interacts with the brake
control system and powertrain control
system of your vehicle to provide the
best performance on different road
conditions.
• Your vehicle's brake system and the
trailer brake system work
independently of each other. Changing
the gain setting on the controller does
not affect the operation of your
vehicle's brake system whether you
attach a trailer or not.
• When you switch the engine off, the
controller output is disabled and the
display and module shut down. The
controller module and display turn on
when you switch the ignition on.
• The trailer brake controller is only a
factory-installed or dealer-installed
item. Ford is not responsible for
warranty or performance of the
controller due to misuse or customer
installation.
Trailer Lamps WARNING:
Never connect any
trailer lamp wiring to the vehicle's tail
lamp wiring; this may damage the
electrical system resulting in fire. Contact
your authorized dealer as soon as
possible for assistance in proper trailer
tow wiring installation. Additional
electrical equipment may be required. Trailer lamps are required on most towed
vehicles. Make sure all running lamps,
brake lamps, turn signals and hazard
warning lamps are working.
Before Towing a Trailer
Practice turning, stopping and backing up
to get the feel of your vehicle-trailer
combination before starting on a trip.
When turning, make wider turns so the
trailer wheels clear curbs and other
obstacles.
When Towing a Trailer
•
Do not drive faster than
70 mph
(113 km/h) until you drive your vehicle
at least 495 mi (800 km). See
Breaking-In (page 247).
• Do not make full-throttle starts.
• Check the tow hitch, electrical
connections and trailer wheel lug nuts
thoroughly after you have traveled
50 mi (80 km)
.
• When stopped in congested or heavy
traffic during hot weather, place the
gearshift in position park (
P) to aid
engine and transmission cooling and
to help A/C performance.
• Turn off the speed control with heavy
loads or on hilly terrain. The speed
control may turn off automatically
when you are towing on long, steep
grades.
• Shift to a lower gear when driving down
a long or steep hill. Do not apply the
brakes continuously, as they may
overheat and become less effective.
• If the transmission is fitted with a
Grade Assist, Tow/Haul
feature, use
this feature when towing. This provides
engine braking and helps eliminate
excessive transmission shifting for
optimum fuel economy and
transmission cooling.
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2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Towing

REDUCED ENGINE
PERFORMANCE
WARNING: If you continue to drive
your vehicle when the engine is
overheating, the engine could stop
without warning. Failure to follow this
instruction could result in the loss of
control of your vehicle.
If the engine coolant temperature gauge
needle moves to the upper limit position,
the engine is overheating. See Gauges
(page 110).
You must only drive your vehicle for a short
distance if the engine overheats. The
distance you can travel depends on
ambient temperature, vehicle load and
terrain. The engine continues to operate
with limited power for a short period of
time.
If the engine temperature continues to rise,
the fuel supply to the engine reduces. The
air conditioning switches off and the engine
cooling fan operates continually.
1. Gradually reduce your speed and stop your vehicle as soon as it is safe to do
so.
2. Immediately switch the engine off to prevent severe engine damage.
3. Wait for the engine to cool down.
4. Check the coolant level. See
Engine
Coolant Check (page 285).
5. Have your vehicle checked as soon as possible. ECONOMICAL DRIVING
The following helps to improve fuel
consumption:
•
Regularly check your tire pressures and
make sure that they are inflated to the
correct pressure.
• Follow the recommended maintenance
schedule and carry out the
recommended checks.
• Plan your journey and check the traffic
before you set off.
• Avoid idling the engine in cold weather
or for extended periods. Start the
engine only when you are ready to set
off.
• Do not carry unnecessary weight in your
vehicle as extra weight wastes fuel.
• Do not add unnecessary accessories
to the exterior of your vehicle, for
example running boards. If you use a
roof rack, remember to fold it down or
remove it when not in use.
• Drive smoothly, accelerate gently and
anticipate the road ahead to avoid
heavy braking.
• Switch off all electric systems when
not in use, for example air conditioning.
Make sure that you unplug any
accessories from the auxiliary power
points when not in use.
COLD WEATHER
PRECAUTIONS
The functional operation of some
components and systems can be affected
at temperatures below approximately
-13°F (-25°C)
.
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2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Driving Hints

Protected Component
Fuse Rating
Item
Not used.
-
34
Vehicle power 2.
15 A
35
Engine coolant bypass valve.
5 A
36
Glow plugs.
5 A
37
Powertrain control module.
Anti-lock brake system with electronic stability
control (excluding 510 series).
40 A
38
Cooling fan (510 series).
60 A
Not used.
-
39
Vehicle power 3.
10 A
40
Not used.
-
41
Not used (excluding 510 series).
-
42 Cooling fan (510 series).
15 A
Anti-lock brake system pump.
60 A
43
Cooling fan (excluding 510 series).
25 A
44 Not used (510 series).
-
Trailer socket.
30 A
45
Not used.
-
46
Not used.
-
47
Cooling fan (excluding 510 series).
50 A
48 Anti-lock brake system with electronic stability
control (510 series).
40 A
Not used.
-
49
Not used.
-
50
Air conditioning clutch.
10 A
51
Cooling fan (excluding 510 series).
50 A
52 Cooling fan (510 series).
60 A
Not used.
-
53
266
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Fuses

2. Clean the area around the air tube to
air filter cover connection to prevent
debris from entering the system and
then loosen the bolt on the air tube
clamp so the clamp is no longer snug
to the air tube. It is not necessary to
completely remove the clamp. Pull the
air tube off from the air filter cover.
3. Release the clamps that secure the air
filter cover to the air filter housing. 4.
Carefully lift the air filter housing cover.
Remove the air filter element from the
air filter housing.
5. Install a new air filter element.
6. Replace the air filter housing cover. Engage the clamps that secure the air
filter housing cover to the air filter
housing. Be careful not to crimp the
filter element edges between the air
filter housing and cover. Make sure
that the tabs on the edge are correctly
aligned into the slots.
7. Slip the air tube onto the air filter cover
and snugly tighten the bolt on the air
tube clamp, but do not overtighten.
8. Reconnect the intake air temperature sensor electrical connector to the
outlet tube. Make sure the locking tab
on the connector is in the locked
position. ENGINE COOLING FAN WARNING: Keep your hands and
clothing clear of the engine cooling fan.
Under certain conditions, the engine
cooling fan may continue to run for several
minutes after you switch your vehicle off.
ENGINE COOLANT CHECK WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury. WARNING:
Do not put coolant in
the windshield washer reservoir. If
sprayed on the windshield, coolant could
make it difficult to see through the
windshield. WARNING:
To reduce the risk of
personal injury, make sure the engine is
cool before unscrewing the coolant
pressure relief cap. The cooling system
is under pressure. Steam and hot liquid
can come out forcefully when you loosen
the cap slightly. WARNING:
Do not add coolant
further than the MAX mark.
When the engine is cold, check the
concentration and level of the coolant at
the intervals listed in the scheduled
maintenance information. See Scheduled
Maintenance
(page 446).
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2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing MaintenanceE174669

Note:
Make sure that the coolant level is
between the MIN and the MAX marks on
the coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the
MAX mark.
Maintain coolant concentration within
48% to 50%, which equates to a freeze
point between
-29°F (-34°C) and -35°F
(-37°C). Coolant concentration should be
checked using a refractometer. We do not
recommend the use of hydrometers or
coolant test strips for measuring coolant
concentration.
Adding Coolant WARNING:
Do not add engine
coolant when the engine is on or the
cooling system is hot. Failure to follow
this instruction could result in personal
injury. WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury. WARNING:
Do not put coolant in
the windshield washer reservoir. If
sprayed on the windshield, coolant could
make it difficult to see through the
windshield.
Note: Do not use stop leak pellets, cooling
system sealants, or non-specified additives
as they can cause damage to the engine
cooling or heating systems. Resulting
component damage may not be covered by
the vehicle Warranty.
Note: Automotive fluids are not
interchangeable. It is very important to use prediluted
coolant approved to the correct
specification in order to avoid plugging the
small passageways in the engine cooling
system. Do not mix different colors or types
of coolant in your vehicle. Mixing of engine
coolants or using an incorrect coolant may
harm the engine or cooling system
components and may not be covered by
the vehicle Warranty.
Note:
If prediluted coolant is not available,
use the approved concentrated coolant
diluting it to 50/50 with distilled water.
Using water that has not been deionised
may contribute to deposit formation,
corrosion and plugging of the small cooling
system passageways.
Note: Coolants marketed for all makes and
models may not be approved to our
specifications and may cause damage to
the cooling system. Resulting component
damage may not be covered by the vehicle
Warranty.
If the coolant level is at or below the
minimum mark, add prediluted coolant
immediately.
To top up the coolant level do the
following:
1. Unscrew the cap slowly. Any pressure escapes as you unscrew the cap.
2. Add prediluted coolant approved to the correct specification.
3. Add enough prediluted coolant to reach the correct level.
4. Replace the coolant reservoir cap. Turn
the cap clockwise until it contacts the
hard stop.
5. Check the coolant level in the coolant reservoir the next few times you drive
your vehicle. If necessary, add enough
prediluted engine coolant to bring the
coolant level to the correct level.
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2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Maintenance

If you have to add more than 1.1 qt (1 L) of
engine coolant per month, have your
vehicle checked as soon as possible.
Operating an engine with a low level of
coolant can result in engine overheating
and possible engine damage.
In case of emergency, you can add a large
amount of water without engine coolant
in order to reach a vehicle service location.
In this instance, qualified personnel:
1. Must drain the cooling system.
2. Chemically clean the coolant system.
3. Refill with engine coolant as soon as possible.
Water alone, without engine coolant, can
cause engine damage from corrosion,
overheating or freezing.
Do not use the following as a coolant
substitute:
• Alcohol.
• Methanol.
• Brine.
• Any coolant mixed with alcohol or
methanol antifreeze.
Alcohol and other liquids can cause engine
damage from overheating or freezing.
Do not add extra inhibitors or additives to
the coolant. These can be harmful and
compromise the corrosion protection of
the coolant.
Recycled Coolant
We do not recommend the use of recycled
coolant as an approved recycling process
is not yet available.
Note: Dispose of used coolant in the
appropriate manner.
Follow your community's regulations and
standards for recycling and disposing of
automotive fluids. Severe Climates
If you drive in extremely cold climates:
•
It may be necessary to increase the
coolant concentration above 50%.
• A coolant concentration of 60%
provides improved freeze point
protection.
• Coolant concentrations above 60%
decrease the overheat protection
characteristics of the coolant and may
cause engine damage.
If you drive in extremely hot climates:
• You can decrease the coolant
concentration to 40%.
• A coolant concentration of 40%
provides improved overheat protection.
• Coolant concentrations below 40%
decrease the overheat and corrosion
protection characteristics of the
coolant and may cause engine
damage.
Vehicles driven year-round in non-extreme
climates should use prediluted coolant for
optimum cooling system and engine
protection.
Coolant Change
At specific mileage intervals, as listed in
the scheduled maintenance information,
the coolant should be changed. Add
prediluted coolant approved to the correct
specification.
Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient
temperature, vehicle load and terrain.
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2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Maintenance